Answer:
The answer is 4.25*10^−4
Step-by-step explanation:
First convert 2.5*10^-5 into decimal form
That's
2.5*10^-5 = 0.000025
0.00045 - 0.000025 = 0.000425
= 4.25*10^−4 in scientific notation
Hope this helps
(4 x 11) + (4 x 25) = 4 x 36 = 144
829 rounded to the nearest tenth is 830
If the 9 would be a 4 or lower, then it would be 820, but in this case, it's a number larger than 5, so it would be 830.
Should be 13 Across the bottom and 6 on top which would be 19 in total
